Proofread PR 5870 again, and fixed one typo and clarified some sentences

Author: Wallby

hub/package-manager/package/repository.md

@@ -65,10 +65,11 @@ To create a fork of the Windows Package Manager Community repository and clone t
 ### Step 4: Setup sparse checkout
 
 Sparse checkout allows you to choose which parts of a repository you want to download, instead of downloading everything.
-Next you have to specify filters for sparse checkout to use (stored in `.git/info/sparse-checkout`).
+In the previous step, `--no-checkout` means that no files have been downloaded yet.
 
-You must add your manifest files to the repository in the following folder structure:
-To initialize sparse checkout for a repository you must type:
+Before downloading anything, you'll have to specify filters for sparse checkout to use (stored in `.git/info/sparse-checkout`).
+
+First, here is an explanation of what is going to be set up. You must add your manifest files to the repository in the following folder structure:
 
 **manifests** / **letter** / **publisher** / **application** / **version**
 
@@ -82,24 +83,26 @@ The `PackageIdentifier` and the `PackageVersion` values in the manifest must mat
 
 Thus to set up sparse checkout for all manifests of a publisher, you'd type:
 
-1. If you are using Git version 2.37.0 or newer, run the following command to set up sparse checkout for your folder.
+a. If you are using Git version 2.37.0 or newer, run the following command to set up sparse checkout for your folder.
 
     ```powershell
     git sparse-checkout set manifests\<letter>\<publisher>
     ```
 
-    If you are using an older version of Git, refer to the [Git documentation](https://git-scm.com/docs/git-sparse-checkout) for how to set up sparse checkout for your local repository.
+b. If you are using an older version of Git, refer to the [Git documentation](https://git-scm.com/docs/git-sparse-checkout) for how to set up sparse checkout for your local repository.
 
 Note that the above command will override all current sparse checkout settings and set it up for only that one folder, refer to the [Git documentation](https://git-scm.com/docs/git-sparse-checkout) for setting up sparse checkout with multiple folders.
 
 ### Step 5: Checkout the repository
 
-You can now apply the sparse checkout settings by running.
+You can now apply the sparse checkout settings by running the normal checkout command.
 
 ```powershell
 git checkout
 ```
 
+Even if the folder you want to submit hasn't been committed to the repository yet, you must still run the checkout command, as it will be impossible to push without the Git internals it sets up.
+
 If you are entering multiple submissions, create a branch instead of a fork. We currently allow only one manifest file per submission.
 
 ```powershell